linux-kernel - Re: PROBLEM: 4.15.0-rc3 APIC causes lockups on Core 2 Duo laptop

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Date:   Thu, 28 Dec 2017 18:23:39 +0800
From:   Dou Liyang <douly.fnst@...fujitsu.com>
To:     Alexandru Chirvasitu <achirvasub@...il.com>
CC:     Thomas Gleixner <tglx@...utronix.de>,
        Dexuan Cui <decui@...rosoft.com>, Pavel Machek <pavel@....cz>,
        kernel list <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...hat.com>,
        "Maciej W. Rozycki" <macro@...ux-mips.org>,
        Mikael Pettersson <mikpelinux@...il.com>,
        Josh Poulson <jopoulso@...rosoft.com>,
        "Mihai Costache (Cloudbase Solutions SRL)" <v-micos@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Marc Zyngier <marc.zyngier@....com>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Simon Xiao <sixiao@...rosoft.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        Jork Loeser <Jork.Loeser@...rosoft.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        "devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
        KY Srinivasan <kys@...rosoft.com>
Subject: Re: PROBLEM: 4.15.0-rc3 APIC causes lockups on Core 2 Duo laptop

Hi Alexandru,

At 12/28/2017 10:51 AM, Alexandru Chirvasitu wrote:
> Ah, of course. Attached is the output of `journalctl --boot=-1` after
> booting, getting locked up, and then rebooting a good kernel.
> 
For the Hard lockups on both CPUs after login:

Please try the patch in the attachment by

git am ./0001-x86-vector-Replace-the-raw_spin_lock-with-raw_spin_l.patch

or

patch -p1 < 
./0001-x86-vector-Replace-the-raw_spin_lock-with-raw_spin_l.patch

> Slightly different version of 4.15-rc5; this one has both patches
> applied, yours and Linus' for kexec, but the latter shouldn't make a
> difference.
> 
> ---
> 
> You'll see another trace in there that's been bugging me, about W=X
> checking. I'm not qualified to judge how related they are, but during
> these past few days I've compiled and tested many kernels, and many of
> them have exhibited the W+X thing but*not*  the lockups.
> 

Yes, I found it, but I am not familiar with it and have no idea.

Thanks,
	dou.

---------------------8<--------------------------------------------



View attachment "0001-x86-vector-Replace-the-raw_spin_lock-with-raw_spin_l.patch" of type "text/x-patch" (1383 bytes)